RT Journal Article SR Electronic T1 Azygos Anterior Cerebral Artery Mimicking an Anterior Communicating Artery Aneurysm JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP S74 OP S74 VO 10 IS 5 suppl A1 Johnson B. Lightfoote A1 Ronald S. Grusd A1 Gail Ann Nalls YR 1989 UL http://www.ajnr.org/content/10/5_suppl/S74.abstract AB